Wall-block



J. W. HULL.

WALL BLOC .1920 1,398,695. 'PatentedNov.29,1921. I

n NET a e:-

-. WALL-BLOCK.

- Application filed Jul '12,

T 0 all whom it may concern Be it known that 1, Joint W. HULL, citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in VVall-Blocks, of which the following is a specification.

This invention relates to improvements in masonry and concrete structures and more particularly to wall blocks.

An important object of this invention is to provide a building block or tile having novel means whereby the same may be securely connected to the adjacent blocks so that a wall made from a plurality of the blocks will not be likely to crack as the result of settling of the foundation.

A further object of the invention is to provide a building block having a T-shaped recess in its upper face adapted for the reception of a T-shapedllocking lug on the adjacent block, the said T-shaped locking lug being adapted to be confined within said T-shaped recess by mortar or the like. 7

The invention forming the subject matter of this application aims also to provide a building block which is of highly simplified construction, durable in use, and cheap to manufacture.

Other objects and advantages of the in vention will be apparent during the course of the following description.

In the accompanying drawing, forming a part of this application and in which like numerals are employed to designate like parts throughout the same: 7

Figure 1 is a fragmentary perspective of one course of a wall composed of a plurality of the improved blocks. 7

Fig. 2 is a group perspective ofa plurality of the improved blocks.

Fig. 3 is a vertical transverse section taken on line 3-3 of Fig. 2.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 5- generally designates one course of a wall composed of a pluralityof blocks forming the subject matter of this application.

The invention forming the subject matter of this application embodies a block 6 which is preferably hollow and is provided with longitudinal ribs 8 intersected by a horizontally arranged longitudinally extending reinforcing rib 10. It is obvious, however,

ANTONIO, TEXAS,

Specification of Letters Patent.

ASSIGNOR or ONE-FOURTH TO HENRY D.

ANTONIO, TEXAS.

1920. Serial Ito/395,433; Q

that any suitable arrangement of reinforcing ribs may be employed to strengthen the blocks. The block 6 is provided at one end,

, end of the adjacent block. The shank 16 of the T-shaped locking lug is adapted to be received within a longitudinally extending passage 18 of the T-shaped recess and serves as a means for preventing the lateral movement of one of the blocks with relation to the other blocks. When set up in courses, the head of each of the T-shaped lugs 12 serves to. securely connect the several lugs STTES' ATEN O F CE Iatented' Nov. 29, 1921.

and thereby prevent cracking of the wall due to the settling of the foundation.

The end blocks of the wall may be pro vided with, T-shaped recesses 26' adapted for the reception of the T-shaped locking lugs 12 of the adj acent'blocks. As illustrated in F ig; 2, the passage 28 which receives the A tion taken in connection with the accom- =pany1ng drawings, it will be observed that a building block constructed inaccordance with this invention may be manufactured at an extemely low cost and when used in wall construction will prevent the wall from uncracking due to settling of the necessarily foundation.

the invention herewith shown and described is to be taken as a preferred example of the sameand that such minor changes in arrangement and construction of parts may be made as. will remain within the spirit of the invention and the scope of what is claimed; 7 v I Having thus described the invention, what is claimed as newis:

1. A building block comprising a hollow body adapted to be arranged horizontally with similar bodies in forming courses and provided on its upper face with lugs forming a T-shaped recess at one end portion,

shank 16 of the T-shaped lug 12 extends s 95 1 'It is to be understood that the form of said T-shaped recess including a longitudinal passage opening through one end between the sides of the body, and a transverse passage opening through opposite sides of the body, the opposite end of said body being provided With a T-shaped recess having a transverse passage opening through the end andone side of the body and a longitudinal passage opening through then-opporanged horizontally in courses and each provided on its upper face with lugs defining a T-shaped recess opening throughyone end and the sides of the block, the adjacent block being provided at one end With a T-shaped projection to fit Within said T-shaped recess With its several faces flush with the corresponding faces of the lug defining the recess. v i

' In testimony whereof I affix my signature.

7 JOHN W. HULL. [11. s] 

